List of top Questions asked in AP EAPCET

Mutation is a phenomenon of
1. Alteration of genes
2. Variation in DNA
3. Heritable change in genotype and phenotype of an organism
The phenomenon of a single gene product may produce more than one effect so that a single gene may be related to more than one character.
In flowering plants, a mature female gametophyte is derived from the megaspore mother cell by:
Three identical bar magnets each of magnetic moment \( M \) are placed in the form of an equilateral triangle with north pole of one touching the south pole of the other. The net magnetic moment of the system of magnets is
Choose incorrect statement from the following
In which of the following, elements are correctly arranged in the decreasing order of atomic radius?
Assertion (A): Decrease in the proton number in stroma and accumulation of more protons in the lumen creates proton gradient across the membrane.
Reason (R): Energy is released by the breakdown of proton gradient by ATPase and helps in synthesis of ATP.
Identify the correct option from the following:
Arrange the intermediate compounds of Kreb's cycle based on number of carbons in ascending order.
If the half-life of a radioactive substance is 32 hours, then the fraction of the substance decayed in 4 days is
The wavelength of spectral line corresponding to electron transition \( n = 3 \) to \( n = 2 \) for \( \text{Li}^{2+} \) ion is \( \lambda \,\text{nm} \). What is the wavelength (in nm) corresponding to electron transition \( n = 4 \) to \( n = 1 \) for \( \text{He}^+ \) ion?
If A, B and C represent Planck’s constant, mass and velocity respectively, then the dimensional formula of \(\frac{A}{BC}\) is
Observe the following given changes: \[ \text{wood} \xrightarrow[\text{absence of air}]{\text{high temperature}} X
\text{coal} \xrightarrow[\text{absence of air}]{\text{high temperature}} Y \] X and Y respectively are:
The focal length of a convex lens immersed in a liquid of refractive index 1.2 is \( f_1 \) and its focal length when immersed in another liquid of refractive index 1.25 is \( f_2 \). If the refractive index of the material of the lens is 1.5, then \( f_1 : f_2 = \)
The minimum length of an antenna to transmit a signal of frequency \( 3 \text{ kHz} \) is
Which of the following statements is incorrect about enthalpy?
The standard enthalpy of formation of C\(_2\)H\(_4\)(g), CO\(_2\)(g), and H\(_2\)O(l) are 52, –394, and –286 kJ mol\(^{-1}\) respectively. The heat evolved by burning 7 g of C\(_2\)H\(_4\)(g) is
For a body in simple harmonic motion, the relation between force \( F \) (in Newton) acting on the body and its displacement \( y \) (in metre) is given as \( F + 3y = 0 \). If the time period of oscillation of the body is \( \pi \) s, then its mass is
Two blocks of masses 8 kg and 12 kg kept on a smooth horizontal table are connected to the ends of a light string as shown in the figure. If a horizontal force of 500 N is applied to the block of mass 12 kg, then the tension in the string connecting the blocks is
Two blocks of masses 8 kg and 12 kg
Copper matte mainly contains
What are X and Y in the following set of reactions?
(dry acetone)
Y’ in the following reaction sequence
The SN$_2$ reactivity of the following compounds will be in the order:
I) C$_6$H$_5$CH(CH$_3$)Br
II) (C$_6$H$_5$)$_2$CHBr
III) (C$_6$H$_5$)$_2$C(CH$_3$)Br
IV) C$_6$H$_5$CH$_2$Br
Pick up the hormone releasing intrauterine device.
Which of the following human proteins is used to treat emphysema?
Match the following:
Hormones Chemical Nature
A) InsulinIV) Protein
B) EstrogenI) Steroid
C) OxytocinII) Peptide
D) ThyroxineIII) Amine

Identify the correct match:
Assertion (A): Non-polar tails of saturated hydrocarbons are protected from aqueous environment.
Reason (R): Hydrophilic heads are on the outside of the membrane.
Identify the correct option from the following: